1. Add the can to a large pot with water (the can should be covered completely) and bring to a boil. Reduce the heat do medium-low heat and let simmer for 2 to 2 1/2 hours. Check from time to time and add some more hot water if needed. The can should always be covered with water or it might overheat and break/explode.

2. Use a pair of tongs and remove the can from the water and place it on a wire rack. Let it cool down completely. CAUTION: Do not open while still hot/warm – the can is under pressure and has to cool down completely.

3. The Dulce de leche can be stored in the unopened can for up to 3 months, if opened, store in the fridge for up to 3 weeks. Warm it up to soften it before using it.